Answer:
Deforestation, which is logging or burning forests, is a way in which humans cause erosion. Removal of the vegetation covering the ground causes the soil, which is unprotected against wind and water, to erode. The loss of topsoil essentially destroys the ability for the land to regenerate.
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Answer:
1. cytoskeleton
2. Golgi apparatus
3. smooth endoplasmic reticulum
4. nucleolus
5. nucleus
6. Rough endoplasmic reticulum
7. ribosomes
8. chlorophyll
9. vacuole
10. mitochondrion
11. cytoplasm
12. adjacent cell wall
13. plasma membrane
14. outer layer (cell wall)
Answer: C. M. rupestris, M. eastwoodiae, and M. nelsonii; they put more energy into making rooted branches than they put into making nectar and seeds.
Explanation:
In asexual mode of reproduction the plant does not produce gametes. The plant reproduce through vegetative propagation or spore formation. The plant does not produce nectar as no flowers are produced to attract the pollinators.
In sexual mode of reproduction the plant will develop the gametes and flowers will produce the nectar to attract the pollinators.
Thus on the basis of above explaination, C is the correct option. As the plants will invest more energy in making roots which are the organs for vegetative propagation a process of asexual reproduction.
Answer: ionotropic; metabotropic
Explanation:
A receptor can directly open the channel and exerts an ionotropic effect. The ionotropic effect takes place by the help of ionotropic receptors. These receptors are membrane bound receptor proteins which responds by the bonding of the ligand.
Due to ligand binding the channel opens and allows the movement of ions into the cells which helps in either increasing or decreasing the action potential.
The receptors can also bind to the ligand and produce metabotropic effect which means by the second messenger.
C. Pepsin is the hormone that is produced mainly in the stomach and regulates secretions of gastric juice.
